From Longman Dictionary of Contemporary Englishmajor-leagueˌmajor-ˈleague adjective [only before noun] 1 connected with the Major Leagues a major league pitcher2 important, large, or having a lot of influence a major-league player in California politics
Examples from the Corpus
major-league• But then we go to Southern Miss and stumble major-league.• These subsidiaries are thus somewhat like the farm teams of a major-league baseball club.• He has seen World Series and traveled to witness Opening Day in a handful of major-league cities.• According to a study commissioned by the owners, the profits of major-league clubs have fallen by 54% since 1989.• These have fewer choices per course, but are thoughtfully constructed and generous with major-league dishes.• He deserves a chance to prove that he is ready to win on the major-league level.• I know how hard it is to become a major-league player and how much time it takes.• All 68 major-league umpires went through orientation sessions this winter and have vowed to create a uniform strike zone.From Longman Business Dictionarymajor-leagueˈmajor-league adjective [only before a noun] important or influentialHe was a major-league market professional. 